EP2550760B1 - Procédé et appareil permettant de réduire des interférences intercellulaires dans un système de radiocommunication - Google Patents
Procédé et appareil permettant de réduire des interférences intercellulaires dans un système de radiocommunication Download PDFInfo
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- EP2550760B1 EP2550760B1 EP11759742.7A EP11759742A EP2550760B1 EP 2550760 B1 EP2550760 B1 EP 2550760B1 EP 11759742 A EP11759742 A EP 11759742A EP 2550760 B1 EP2550760 B1 EP 2550760B1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
Claims (15)
- Procédé destiné à réduire des interférences intercellulaires, le procédé comprenant :
la transmission, depuis une première cellule vers un équipement utilisateur (131, 132), des informations sur un signal de référence spécifique à la cellule, CRS, d'une deuxième cellule, le procédé comprenant en outre :la transmission, vers l'équipement utilisateur (131, 132), d'un canal de liaison descendante de la première cellule en prenant en considération les informations sur le CRS de la deuxième cellule,dans lequel les informations sur le CRS de la deuxième cellule comprennent des informations indiquant de manière explicite un nombre de ports d'antenne CRS de la deuxième cellule, etdans lequel les informations sur le CRS de la deuxième cellule sont fournies, par la première cellule, à l'équipement utilisateur (131, 132) en tant qu'informations pour la démodulation du canal de liaison descendante. - Procédé selon la revendication 1, dans lequel les informations sur le CRS de la deuxième cellule comprennent en outre une configuration de sous-trame de la deuxième cellule indiquant les sous-trames contenant le CRS dans une région de données.
- Procédé selon la revendication 2, dans lequel la configuration de sous-trame comprend une configuration de sous-trame de réseau de diffusion/multidiffusion à fréquence unique, MBSFN, de la deuxième cellule.
- Procédé selon la revendication 1, dans lequel les informations sur le CRS de la deuxième cellule sont fournies à partir de la première cellule par l'intermédiaire d'une signalisation de couche supérieure.
- Procédé selon la revendication 1, dans lequel des éléments de ressource, REs, de transmission de CRS de la deuxième cellule sont déterminés par l'équipement utilisateur (131, 132) sur la base des informations sur le CRS de la deuxième cellule.
- Procédé selon la revendication 1, dans lequel au moins une partie des REs d'une sous-trame de la première cellule se chevauchant avec les REs de transmission de CRS de la deuxième cellule n'est pas utilisé pour le canal de liaison descendante de la première cellule.
- Procédé selon la revendication 6, dans lequel au moins une partie des REs de la sous-trame de la première cellule est configurée comme un RE nul.
- Procédé selon la revendication 1, dans lequel la première cellule est une cellule de service et la deuxième cellule est une cellule voisine.
- Procédé destiné à réduire des interférences intercellulaires, le procédé comprenant :
la réception, depuis une première cellule par un équipement utilisateur (131, 132), des informations sur un signal de référence spécifique à la cellule, CRS, d'une deuxième cellule, le procédé comprenant en outre :la réception, depuis la première cellule, d'un canal de liaison descendante de la première cellule en prenant en considération les informations sur le CRS de la deuxième cellule,dans lequel les informations sur le CRS de la deuxième cellule comprennent des informations indiquant de manière explicite un nombre de ports d'antenne CRS de la deuxième cellule, etdans lequel les informations sur le CRS de la deuxième cellule sont utilisées par l'équipement utilisateur (131, 132) pour démoduler le canal de liaison descendante reçu depuis la première cellule. - Procédé selon la revendication 9, dans lequel les informations sur le CRS de la deuxième cellule comprennent en outre une configuration de sous-trame de la deuxième cellule indiquant les sous-trames contenant le CRS dans une région de données.
- Procédé selon la revendication 9, dans lequel la configuration de sous-trame comprend une configuration de sous-trame de réseau de diffusion/multidiffusion à fréquence unique, MBSFN, de la deuxième cellule.
- Procédé selon la revendication 9, dans lequel des éléments de ressource, REs, de transmission de CRS de la deuxième cellule sont déterminés par l'équipement utilisateur (131, 132) sur la base des informations sur le CRS de la deuxième cellule.
- Procédé selon la revendication 9, dans lequel au moins une partie des REs d'une sous-trame de la première cellule se chevauchant avec les REs de transmission de CRS de la deuxième cellule n'est pas utilisé pour le canal de liaison descendante de la première cellule.
- Station de base (2910) d'une première cellule destinée à réduire des interférences intercellulaires, la station de base (2910) comprenant :un module de réception (2911) destiné à recevoir un signal de liaison montante depuis un équipement utilisateur (131, 132) ;un module de transmission (2912) destiné à transmettre un signal de liaison descendante à l'équipement utilisateur (131, 132) ; etun processeur (2913) configuré pour commander le module de transmission pour transmettre, de la première cellule à l'équipement utilisateur (131, 132), des informations sur un signal de référence spécifique à la cellule, CRS, d'une deuxième cellule,dans lequel le processeur (2913) est en outre configuré pour transmettre, à l'équipement utilisateur (131, 132), un canal de liaison descendante de la première cellule en prenant en considération les informations sur le CRS de la deuxième cellule,dans lequel les informations sur le CRS de la deuxième cellule comprennent des informations indiquant de manière explicite un nombre de ports d'antenne CRS de la deuxième cellule, etdans lequel les informations sur le CRS de la deuxième cellule sont fournies à l'équipement utilisateur (131, 132) en tant qu'informations pour la démodulation du canal de liaison descendante.
- Équipement utilisateur (131, 132) destiné à réduire des interférences intercellulaires, l'équipement utilisateur (131, 132) comprenant :un module de réception destiné à recevoir un signal de liaison descendante depuis une station de base d'une première cellule ;un module de transmission destiné à transmettre un signal de liaison montante à la station de base de la première cellule ; etun processeur configuré pour commander le module de réception pour recevoir, depuis la première cellule par l'équipement utilisateur (131, 132), des informations sur un signal de référence spécifique à la cellule, CRS, d'une deuxième cellule,dans lequelle processeur est en outre configuré pour recevoir, depuis la première cellule, un canal de liaison descendante de la première cellule en prenant en considération les informations sur le CRS de la deuxième cellule,les informations sur le CRS de la deuxième cellule comprennent des informations indiquant de manière explicite un nombre de ports d'antenne CRS de la deuxième cellule, etles informations sur le CRS de la deuxième cellule sont utilisées par l'équipement utilisateur (131, 132) pour démoduler le canal de liaison descendante reçu depuis la première cellule.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US31724110P | 2010-03-24 | 2010-03-24 | |
US31770410P | 2010-03-26 | 2010-03-26 | |
US32077610P | 2010-04-05 | 2010-04-05 | |
US33090110P | 2010-05-04 | 2010-05-04 | |
US37668110P | 2010-08-25 | 2010-08-25 | |
US39107710P | 2010-10-08 | 2010-10-08 | |
PCT/KR2011/002029 WO2011118993A2 (fr) | 2010-03-24 | 2011-03-24 | Procédé et appareil permettant de réduire des interférences intercellulaires dans un système de radiocommunication |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2550760A2 EP2550760A2 (fr) | 2013-01-30 |
EP2550760A4 EP2550760A4 (fr) | 2016-12-28 |
EP2550760B1 true EP2550760B1 (fr) | 2020-02-19 |
Family
ID=44673767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11759742.7A Active EP2550760B1 (fr) | 2010-03-24 | 2011-03-24 | Procédé et appareil permettant de réduire des interférences intercellulaires dans un système de radiocommunication |
Country Status (6)
Country | Link |
---|---|
US (4) | US8965294B2 (fr) |
EP (1) | EP2550760B1 (fr) |
JP (3) | JP5567153B2 (fr) |
KR (1) | KR101850721B1 (fr) |
CN (2) | CN105141391B (fr) |
WO (1) | WO2011118993A2 (fr) |
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